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Mercury (Hydrargyrum)
Chemical Properties & Compounds
| Symbol | Atomic Number | Atomic Weight | Melting Point | Boiling Point | Phase | Density | Classification |
| Hg | 80 | 200.59 | -38.83 °C | 356.73 °C | Liquid | 13.534 g/cm3 | Metal  |
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|
|
| General |
| Name, Symbol, Number |
mercury, Hg, 80 |
| Chemical series |
transition metals |
| Group, Period, Block |
12, 6, d |
| Appearance |
silvery
 |
| Standard atomic weight |
200.59(2) g·mol−1 |
| Electron configuration |
[Xe] 4f14 5d10 6s² |
| Electrons per shell |
2, 8, 18, 32, 18, 2 |
| Physical properties |
| Phase |
liquid |
| Density (near r.t.) |
(liquid) 13.534 g·cm−3 |
| Melting point |
234.32 K
(-38.83 °C, -37.89 °F) |
| Boiling point |
629.88 K
(356.73 °C, 674.11 °F) |
| Critical point |
1750 K, 172.00 MPa |
| Heat of fusion |
2.29 kJ·mol−1 |
| Heat of vaporization |
59.11 kJ·mol−1 |
| Heat capacity |
(25 °C) 27.983 J·mol−1·K−1 |
Vapor pressure
| P(Pa) |
1 |
10 |
100 |
1 k |
10 k |
100 k |
| at T(K) |
315 |
350 |
393 |
449 |
523 |
629 |
|
| Atomic properties |
| Crystal structure |
rhombohedral |
| Oxidation states |
2, 1
(mildly basic oxide) |
| Electronegativity |
2.00 (scale Pauling) |
| Ionization energies |
1st: 1007.1 kJ/mol |
| 2nd: 1810 kJ/mol |
| 3rd: 3300 kJ/mol |
| Atomic radius |
150 pm |
| Atomic radius (calc.) |
171 pm |
| Covalent radius |
149 pm |
| Van der Waals radius |
155 pm |
| Miscellaneous |
| Magnetic ordering |
diamagnetic |
| Electrical resistivity |
(25 °C) 961 nΩ·m |
| Thermal conductivity |
(300 K) 8.30 W·m−1·K−1 |
| Thermal expansion |
(25 °C) 60.4 µm·m−1·K−1 |
| Speed of sound |
(liquid, 20 °C) 1451.4 m/s |
| CAS registry number |
7439-97-6 |
| Selected isotopes |
|
|
| References |
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Mercury Compounds
|
Source: Wikipedia article Mercury
|
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Chemistry Quick Facts
